<template>
  <div class="about">
    <h1>This is an about page</h1>
    <!-- elementui组件库  组件都是以el-开头的 -->
     <el-button type="primary">主色按钮</el-button>
     <el-button type="success">成功色</el-button>
    <el-button type="danger">危险</el-button>
    <el-button type="warning">警告</el-button>
      <el-button type="info">详情</el-button>
    
  </div>
</template>
